That's exactly what I meant, it just seems odd to hide it from neighboring countries, or tribes or any outside people nearby.
I only asked because from my understnading most technological, medicinal and philosophical advancements derives from trade, war, knowledge sharing etc.
And there's such a thing in fiction that even if something is fantastical, or magic, it still needs to be believable in the world it's in. And I'd assume that the world Marvel is in the rest of the world gained its technology and knowledge through the exact same way our world did... which is through war, trade, invasions, cultural assimilation etc. so in that sense yes I do find it hard to believe, but yes I will still see the film because it looks great and I really enjoyed Black Panther in Civil War. I have no other exposure or knowledge of the character outside of what I've seen.
If such a simple question or discussion makes you think that I'm having a meltdown perhaps look in the mirror?